19 pin USB 3.0 motherboard adapter offers a throughput of up to 4.8Gbps when used with a USB 3.0 host and device , which astounding the capability of USB 2.0 (480Mbps). USB 3.0 header to usb 2.0 adapter cable use molded-strain relief construction for flexible movement, durability, and fit. USB 3.0 to USB 2.0 motherboard adapter cable complies with fully rated cable specification using braid-and-foil shield protection. USB3.0 technology of USB 3.0 motherboard adapter is similar to PCI Express 2.0(5 Gbit/s) It uses 8 B10B encoding,linear feedback shift register (LFSR) scrambling for data, spread spect . Let your USB 3.0 motherboard adapter 19 pin device connected the USB 2.0 9 pin motherboard. Colour: black Material: PVC Size: length: about 10cm Package Contents: 2 * Motherboard USB conversion cable Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.